Nauchnyĭ sovet po kriologii Zemli (Akademi︠i︡a nauk SSSR), Institut merzlotovedeni︠i︡a (Akademi︠i︡a nauk SSSR), International Conference on Permafrost, & Melʹnikov, P. I. (1988). Problemy geokriologii: Sbornik nauchnykh trudov. Nauka.
Lua i Stíl Chicago (17ú heag.)Nauchnyĭ sovet po kriologii Zemli (Akademi︠i︡a nauk SSSR), Institut merzlotovedeni︠i︡a (Akademi︠i︡a nauk SSSR), International Conference on Permafrost, agus Pavel Ivanovich Melʹnikov. Problemy Geokriologii: Sbornik Nauchnykh Trudov. Moskva: Nauka, 1988.
Lua MLA (8ú heag.)Nauchnyĭ sovet po kriologii Zemli (Akademi︠i︡a nauk SSSR), et al. Problemy Geokriologii: Sbornik Nauchnykh Trudov. Nauka, 1988.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.